We've all heard that Ground Zeroes has a relatively short campaign that can be completed in about 2 hours. Also, although we've been told that the campaign is not truly indicative of the amount of content that's in the game when you include side content, we're still somewhat skeptical about how much "bang for your buck" Ground Zeroes will really bring. Well, Kojima has come out and said that Phantom Pain will pack a ton of content, probably more content than any other Metal Gear Solid title to date. Specifically, the Phantom Pain will be "200 times bigger" than Ground Zeroes.
Additionally, it seems like Ground Zeroes was pushed out a bit quickly in order to give the MGS fans something to quench their MGS thirst while they wait for the next major installment in the blockbuster franchise.
Metal Gear Solid V: Ground Zeroes is set to release on March 18, 2014. As of yet, there's no release date for The Phantom Pain.I’ll be honest here: this wasn’t necessarily a strategic move,” Kojima said. “The Phantom Pain is roughly over 200 times bigger than Ground Zeroes… I knew we couldn’t hit a game that big for next-gen launch date [22nd February for the PS4 in Japan], and we didn’t have any Japanese titles that were available for launch… At that time Ground Zeroes was almost complete, and a lot of fans asked for a product out there, so that’s the decision I took